EP2478253B1 - Vorrichtung zur schwingungsdämpfenden lagerung eines fluidaggregats und zugehöriges fluidaggregat - Google Patents

Vorrichtung zur schwingungsdämpfenden lagerung eines fluidaggregats und zugehöriges fluidaggregat Download PDF

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Publication number
EP2478253B1
EP2478253B1 EP10734131.5A EP10734131A EP2478253B1 EP 2478253 B1 EP2478253 B1 EP 2478253B1 EP 10734131 A EP10734131 A EP 10734131A EP 2478253 B1 EP2478253 B1 EP 2478253B1
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EP
European Patent Office
Prior art keywords
damping element
elastic damping
assembly
clamping
stay bolt
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP10734131.5A
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German (de)
English (en)
French (fr)
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EP2478253A1 (de
Inventor
Matthias Mayr
Andreas Weh
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2478253A1 publication Critical patent/EP2478253A1/de
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Publication of EP2478253B1 publication Critical patent/EP2478253B1/de
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/373—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by having a particular shape
    • F16F1/3732—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by having a particular shape having an annular or the like shape, e.g. grommet-type resilient mountings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2228/00—Functional characteristics, e.g. variability, frequency-dependence
    • F16F2228/08—Functional characteristics, e.g. variability, frequency-dependence pre-stressed

Definitions

  • the invention relates to a device for the vibration-damping mounting of a fluid aggregate according to the preamble of independent claim 1 and an associated fluid aggregate according to the preamble of independent claim 10.
  • a device for the elastic mounting of a hydraulic unit of a vehicle brake system in a vehicle comprises a stud, a penetrated by the stud bolt sleeve-shaped damping element having an outwardly open receiving groove which is insertable into an associated receiving opening of a mounting bracket, a stud guided by the clamping sleeve and a screw with an internal thread.
  • the stud bolt is connected via a connecting pin with the unit and has a threaded shaft with an external thread on which the screw is screwed to move the clamping sleeve axially on the stud so against the damping element, that the damping element in the tensioned state both radially expanded also shortened axially.
  • a device for elastic mounting of a hydraulic unit of a vehicle brake system in a vehicle comprises a stud, a penetrated by the stud bolt sleeve-shaped damping element having an outwardly open receiving groove which is insertable into an associated receiving opening of a mounting bracket, a stud guided by the clamping sleeve and a screw with an internal thread.
  • the stud bolt is connected via a connecting pin with the unit and points a threaded shaft with an external thread on which the screw is screwed to move the clamping sleeve axially on the stud so against the damping element, that the damping element in the tensioned state is both radially expanded and axially shortened.
  • the described device comprises a sleeve-shaped damping element which is penetrated by the stud bolt and which has an outwardly open receiving groove which can be inserted into an associated receiving opening of the plate, and a sleeve guided by the stud bolt with a screw element with an internal thread.
  • the stud has a threaded shaft with an external thread on which the screw is screwed to move the sleeve axially to the stop on the stud, so that the sleeve fully engages the damping element without tensioning the damping element, ie without the damping element radially expand and / or shorten axially.
  • the described device comprises a bolt-shaped armature, a sleeve-shaped damping element penetrated by the armature, which has an outwardly open receiving groove, which is insertable into an associated receiving opening of a mounting bracket, and an axially guided by the armature tensioning means, which by manual operation from a basic position in a Application position can be transferred, wherein the clamping means is locked in each case in its basic position and in its application position with the armature and applied in its application position, the damping element with an axial force.
  • the described device comprises a stud bolt with latching hook, a penetrated by the stud bolt sleeve-shaped damping element having an outwardly open receiving groove which is insertable into an associated receiving opening of a mounting bracket, an axially guided by the stud retaining bush, which also on its inside with axially successive , but opposite to the latching hook of the stud having aligned latching hooks of identical geometry.
  • the retaining bush with relatively small and acting in the longitudinal direction of the stud bolt force can be stuck on the studs and fix.
  • the inventive device for vibration-damping storage of a fluid assembly with the features of independent claim 1 has the advantage that the clamping sleeve and the screw with Internal thread are designed as a one-piece clamping element with a contact shoulder, wherein the axial force generated by the clamping element by the screwing on a threaded shaft with external thread of a stud bolt on the contact shoulder acts on an elastic damping element.
  • the inventive device for vibration-damping mounting of a vehicle assembly, in particular a fluid assembly of a vehicle brake system, in an associated receiving opening thus comprises the stud, which passes through the sleeve-shaped and elastic damping element, and the clamping element with contact shoulder, clamping sleeve and screw.
  • the elastic damping element serves to avoid a direct contact between a holder and the rigid parts of the device for vibration-damping storage of a fluid aggregate.
  • the elastic damping element has an outwardly open receiving groove, which is inserted into the associated receiving opening.
  • the stud has a connecting pin, via which the device can be connected to the vehicle unit.
  • the clamping element can be screwed by the screw with internal thread on the stud so that the clamping element is moved with the contact shoulder and the clamping sleeve axially on the stud against the damping element to bring the elastic damping element in a tensioned state, in which it is both radially expanded and shortened axially.
  • Embodiments of the device according to the invention for the vibration-damping mounting of a fluid aggregate advantageously allow a redesign of the number of components and a reduction of the required mounting space, since the clamping element can be made more compact and thus shorter.
  • a vehicle unit, in particular fluid unit of a vehicle brake system, with the features of independent claim 10 has the advantage that it is held vibration-free in at least one device according to the invention in a corresponding receiving opening of a vehicle-mounted console, wherein the at least one device according to the invention via a receiving bore with a Housing of the vehicle unit is connected.
  • the at least one device according to the invention for the vibration-damping mounting of a fluid aggregate the receiving groove open to the outside of the damping element is pressed into the corresponding receiving opening of the mounting bracket, whereby the position of the vehicle assembly is defined in the starting position.
  • the damping element By tightening the clamping element with contact shoulder, clamping sleeve and screw the damping element is axially compressed and radially expanded to produce a positive connection, whereby the vehicle assembly is secured.
  • Embodiments of the invention allow by the vibration-damping mounting of the vehicle assembly in an advantageous manner, a suppression or damping of vibration transmission from the unit to the body of the vehicle.
  • These vibrations can be caused for example by an electric motor, which is provided for actuating pumps on the unit.
  • pump operation for example, when used in a hydraulic brake system, a brake pressure at the wheel brakes can be modulated.
  • the vibration-damping storage the resulting mechanical and / or hydraulic vibrations can be damped and a disturbing perception of the vehicle occupants can be avoided.
  • a disc is arranged, which is designed so that the friction between the elastic damping element and the disc is higher than the friction between the disc and the abutment shoulder.
  • the disc has the functions of axially compressing the elastic damping element when screwing the clamping element and at the same time to prevent the disc rotates when it rests against the elastic damping element.
  • Such a simply constructed disc is advantageously simple and inexpensive to produce as a bulk.
  • One way to realize low friction between the disc and the abutment shoulder is, for example, at the contact shoulder an undercut so that a defined annular abutment on the disc is present.
  • the outwardly open receiving groove divides the damping element into two asymmetrical sections with different axial lengths, the longer section facing the vehicle unit. Due to the asymmetrical design of the damping element of the displacement of the vehicle assembly is reduced from an initial position to the mounting position in an advantageous manner. As a result, the space required by the fluid aggregate can be reduced in an advantageous manner.
  • the one-piece clamping element is designed so that the contact shoulder only acts on the damping element when the clamping sleeve is immersed under the outwardly open receiving groove.
  • the elastic damping element deforms when inserted into the receiving opening of the mounting bracket in the region of the outwardly open receiving groove due to the different part dimensions inside.
  • a gap can form between the screw element and a stop shoulder of the stud bolt, which lies exactly below this receiving groove and into which the elastic damping element can therefore be clamped and squeezed.
  • the elastic material in the gap can cause the torque in the threaded bandage to deteriorate under operating conditions.
  • the embodiment according to the invention advantageously prevents excessive expansion of the elastic damping element inwards, since the gap and the deformed portion of the damping element are at different axial positions, so that the undesired clamping and squeezing of the damping element during the screwing operation can be prevented in an advantageous manner ,
  • a larger diameter first annular collar is formed on the stud between the connecting pin and the threaded shank, whose one end face is a support shoulder, with which the device in the installed state on the housing supported the aggregate. Furthermore, the other end face of the first annular collar may constitute a stop shoulder for the end face of the clamping sleeve.
  • the first annular collar thus advantageously provides a support surface for specifying an optimal installation depth of the stud bolt and a stop surface for the clamping element.
  • a larger diameter second annular collar is formed on the stud between the support shoulder and the abutment shoulder, which cooperates with an inwardly open receiving groove of the elastic damping element so that the elastic damping element after pushing on the stud during pre-assembly in a defined Position is held, so that can be dispensed with further elements for captive protection in an advantageous manner.
  • At least a portion of the external thread on the threaded shaft is designed so that there is an increased clamping between the screwed screw and the threaded shaft at this at least one area.
  • the external thread on the threaded shaft for example, have a modified pitch to achieve the increased clamping effect.
  • a first region with increased clamping action can for example be positioned on the threaded shaft, that a prestressed state of the damping element is indicated by the increased clamping action and the screw is screwed so far onto the threaded shank, that the internal thread of the screw is completely covered by the external thread of the stud bolt and an open end face of the threaded shaft projects beyond the screw.
  • a second area with increased clamping action can be positioned, for example, on the threaded shank that a tensioned state of the damping element is indicated by the increased clamping action and the screw is screwed so far onto the threaded shank that the end face of the clamping sleeve rests against the contact shoulder.
  • the connecting pin of the stud bolt of the at least one device can be pressed or screwed or caulked into at least one receiving bore of the housing of the vehicle assembly.
  • a fluid aggregate 10 which is used, for example, in an antilock braking system (ABS) or a traction control system (ASR system) or an electronic stability program system (ESP system), usually comprises an electronic assembly 12 or control unit and a fluid area, the one Fluid assembly 14 with fluid components, not shown, such as Fluidstellelemente, fluid channels, pumps, etc., and a housing 14.1 and an electric pump motor 16 includes.
  • Such fluid assemblies 10 are well known in the construction of regulated vehicle brake systems and therefore need not be described in detail.
  • the fluid assembly 10 is used for example for modulating the brake pressure in connected wheel brakes, not shown, taking into account the braking request of the driver and the slip conditions at the wheels of the vehicle.
  • the fluid assembly 10 may be mounted on at least one device 20 according to the invention vibration-damped on a console 30 fixed to a not shown body of the vehicle is anchored.
  • three devices 20 are used for vibration-damping mounting of the vehicle assembly 10 on the console 30.
  • the console 30 has a base plate 31, a connected to the base plate 31 first horizontally oriented legs 32 and a perpendicular thereto connected to the base plate 31 second leg 33.
  • the first leg 32 has two receiving openings 34.1 and 34.2 oriented toward a first spatial direction
  • the second leg 33 has a third receiving opening 34.3 oriented toward a second spatial direction.
  • the receiving openings 34.1, 34.2, 34.3 are designed as cup-shaped fillets which are open to a mounting direction, with claws 35.1, 35.2, 35.3, 35.4, 35.5, 35.6 arranged laterally therefrom and narrowing the receiving openings 34.1, 34.2, 34.3.
  • the three devices 20 are attached to the vibration-damping mounting of the vehicle assembly 10, which are inserted in the suspended state in the respective associated receiving openings 34.1, 34.2, 34.3.
  • the corresponding side surfaces 32.1, 32.2 or 33.1, 33.2 of the two receiving legs 32, 33 may be provided with imprints, not shown, to the static friction between the devices 20 for vibration-damping mounting of the vehicle assembly 10 and the console 30 increase.
  • the console 30 according to further embodiments, not shown, only one leg having at least one receiving opening or three legs with at least one receiving opening.
  • Fig. 1 to 4 an exemplary embodiment of the device 20 according to the invention for the vibration-damping mounting of the vehicle assembly 10 described which is inserted into a first receiving opening 34.1 of the first receiving leg 32.
  • the device 20 comprises a stud bolt 22, a penetrated by the stud bolt 22 sleeve-shaped and elastic damping element 26 which has an outwardly open receiving groove 26.4, which in the associated receiving opening 34.1, 34.2, 34.3, here the receiving opening 34.1 is introduced, a guided by the stud bolt 22 integral clamping element 24, which according to the invention comprises a screw 24.1 with an internal thread 24.2, a clamping sleeve 24.3 and a contact shoulder 24.4.
  • the stud bolt 22 comprises at one end a connecting pin 22.9, which is corrugated along and is received non-rotatably in a receiving bore 14.2 of the housing 14.1 of the fluid assembly 10.
  • the connecting pin 22.9 of the stud bolt 22 can be pressed or screwed or caulked into the corresponding receiving bore 14.2 of the housing 14.1 of the vehicle assembly 10.
  • a larger diameter first annular collar 22.1 is formed on the stud bolt 22, one end face of a support shoulder 22.5, with which the device 20 is supported in the installed state on the housing 14.1 of the fluid assembly 10.
  • a larger diameter second annular collar 22.6 is formed on the stud 22, which with an inwardly open receiving groove 26.5 of the elastic Damping element 26 cooperates so that the elastic damping element 26 is held after being pushed onto the stud bolt 22 in a defined position.
  • the stud bolt 22 has a threaded shank 22.2 with an external thread 22.3, on which the screw 24.1 of the clamping element 24 is screwed.
  • two areas are 24.7, 24.8 of the external thread 22.3 on the threaded shaft 22.2 designed so that at these areas 24.7, 24.8 results in an increased clamping between the screwed screw 24.1 and the threaded shaft 22.2.
  • a grain can be on the external thread 22.3.
  • the slope of the external thread 22.3 on the threaded shaft 22.2 is changed at the two areas 24.7, 24.8 in order to achieve the increased clamping effect.
  • a first area 24.8 with increased clamping action is positioned on the threaded shaft 22.2 that the prestressed state of the damping element 26 is indicated by the increased clamping action and the screw 24.1 is screwed so far onto the threaded shaft 22.2 that the internal thread 24.2 of the screw 24.1 completely from the external thread 22.3 of the stud bolt 22.2 is covered and an open end of the Threaded 22.2 beyond the screw 24.1 protrudes. Damage to the device when connecting the connecting pin to the vehicle assembly can be avoided in an advantageous manner.
  • the prestressed state of the damping element 26 can be converted such that a cavity 29 is formed, in which the Damping element 26 can escape when the damping element 26 is inserted via the outwardly open receiving groove 26.4 in the corresponding receiving opening 34.1.
  • a captive securing of the clamping element 24 can be implemented by the increased clamping, since the screw 24.1 and thus the clamping element 24, for example, stops in its position during transport.
  • a second area 24.7 with increased clamping action can for example be positioned on the threaded shank 22.2 that the tensioned state of the damping element 26 is indicated by the increased clamping action and the screw 24.1 is screwed so far onto the threaded shank 22.2 that the end 24.6 of the clamping sleeve 24.3 the contact shoulder 22.4 of the first annular collar 22.1 is applied.
  • the diameter of the stud 22 is tapered in an intermediate region 22.7, so that between the stud bolt 22 and the damping element 26, the cavity 29 is formed, which is covered by the clamping sleeve 24.3 of the clamping element 24 when the clamping element 24 is screwed to the stop on the contact shoulder 24.4 on the threaded shaft 22.2 of the stud 22.
  • a transition slope 22.8 of the small outer diameter of the stud 22 is increased in the intermediate region 22.7 to the larger outer diameter in the region of the external thread 22.3.
  • the outwardly open receiving groove 26.4 divides the elastic damping element 26 into two asymmetrical sections 26.2, 26.3 with different axial lengths, the longer end section 26.2 facing the vehicle unit 10 and the shorter end section 26.3 facing the clamping element 24.
  • the elastic damping element 26 is accommodated in the state shown unrestrained on the stud bolt 22 and encloses with its longer end portion 26.2 fitting in its inner cross-section first annular collar 22.1 and with the inwardly open receiving groove the second annular collar 22.6.
  • the outer diameter of the screwed onto the stud bolt 22 clamping element 24 has in the region of the clamping sleeve 24.3 the same diameter as the second annular collar 22.6 and passes through the shorter end portion 26.3 of the elastic damping element 26th
  • a washer 28 is arranged between the contact shoulder 24.4 of the clamping element 24 and the elastic damping element 26, whose outer diameter is adapted to the outer diameter of the elastic damping element 26, and whose inner diameter is adapted to the outer diameter of the clamping sleeve 24.3.
  • the disc 28 is designed so that the friction between the elastic damping element 26 and the disc 28 is higher than the friction between the disc 28 and the abutment shoulder 24.4. Therefore, an undercut 24.5 is formed on the abutment shoulder 24.4 so that a defined annular abutment of the abutment shoulder 24.4 on the disc 28 is present.
  • the clamping element 24 is screwed so far on the threaded shank 22.2 of the stud bolt 22, that the clamping sleeve 24.3, the smaller end portion 26.3 of the elastic damping element 26 substantially completely passes through.
  • the fluid assembly 10 is suspended in the mounting bracket 30, that in each case a device 20 according to the invention for vibration-damping mounting of the vehicle assembly 10 via the outwardly open receiving groove 26.4 of the corresponding elastic damping element 26 into a corresponding receiving opening 34.1, 34.2, 34.3 the mounting bracket 30 is pressed.
  • the elastic damping element 26 can escape into the cavity 29 between the first annular collar 22.
  • the clamping element 24 can be further screwed and moved axially on the stud so 22 against the elastic damping element 26 that the elastic damping element 26 in a in Fig. 6 and 7 shown tense Condition is transferred.
  • the screwing is completed by striking the end face 24.6 of the clamping sleeve 24.3 on the contact shoulder 24.4 of the first annular collar 22.1.
  • the elastic damping element 26 in the tensioned state is both radially expanded and shortened axially and the open end 24.6 of the clamping sleeve 24.3 abuts against the contact shoulder 24.4 of the first annular collar 22.1. Due to the radial widening and the axial shortening, a positive locking is produced between the damping element 26 and the region of the side surfaces 32.1, 32.2 of the corresponding leg 32, which is arranged around the receiving opening 34.1, whereby the fluid aggregate 10 is mounted in the fastening bracket 30 in a vibration-damped manner.
  • the cavity 29 is covered by the clamping sleeve 24.3 and the elastic damping element 26 is deformed so that the claws 35.1, 35.2 of the receiving opening 34.1 partially encompassed outwardly open receiving groove 26.4 engages with radial pressure inside the receiving opening 34.1.
  • the two end sections 26.2 and 26.3 of the elastic damping element 26 engage with axial pressure on the two side surfaces 32.1, 32.2 of the first leg 32.
  • the axial clamping of the elastic damping element 26 thus achieves a frictional and positive connection with the first leg 31 of the console 30, the embossing, not shown, of the side surfaces 32.1, 32.2 in the region of the receiving opening 34.1 having a supporting effect.
  • the fluid assembly 10 shifts due to the axial shortening in the direction of the associated side leg 32.
  • the one-piece clamping element 24 is designed so that the contact shoulder 24.4 only acts on the disc 28 on the elastic damping element 26 when the clamping sleeve 24.3 under the externally open receiving groove 26.4 is penetrated, so that pinching and squeezing of the elastic damping element 26 can be avoided in an advantageous manner.
  • Embodiments of the invention advantageously enable a reduction of the mounting space, since the fluid aggregate shifts less when tightening.
  • embodiments of the invention advantageously prevent the elastic damping element from being pinched and pinched off can be as well as the tightening torque in a threaded bandage under conditions of use can subside.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Vibration Prevention Devices (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Regulating Braking Force (AREA)
EP10734131.5A 2009-09-18 2010-07-20 Vorrichtung zur schwingungsdämpfenden lagerung eines fluidaggregats und zugehöriges fluidaggregat Active EP2478253B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009029569A DE102009029569A1 (de) 2009-09-18 2009-09-18 Vorrichtung zur schwingungsdämpfenden Lagerung eines Fluidaggregats und zugehöriges Fluidaggregat
PCT/EP2010/060479 WO2011032747A1 (de) 2009-09-18 2010-07-20 Vorrichtung zur schwingungsdämpfenden lagerung eines fluidaggregats und zugehöriges fluidaggregat

Publications (2)

Publication Number Publication Date
EP2478253A1 EP2478253A1 (de) 2012-07-25
EP2478253B1 true EP2478253B1 (de) 2014-03-26

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EP10734131.5A Active EP2478253B1 (de) 2009-09-18 2010-07-20 Vorrichtung zur schwingungsdämpfenden lagerung eines fluidaggregats und zugehöriges fluidaggregat

Country Status (7)

Country Link
US (1) US9151352B2 (ja)
EP (1) EP2478253B1 (ja)
JP (1) JP5628319B2 (ja)
KR (1) KR101720068B1 (ja)
CN (1) CN102575737B (ja)
DE (1) DE102009029569A1 (ja)
WO (1) WO2011032747A1 (ja)

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WO2011032747A1 (de) 2011-03-24
EP2478253A1 (de) 2012-07-25
JP2013504476A (ja) 2013-02-07
KR101720068B1 (ko) 2017-03-27
CN102575737B (zh) 2015-05-06
CN102575737A (zh) 2012-07-11
KR20120061892A (ko) 2012-06-13
US9151352B2 (en) 2015-10-06
DE102009029569A1 (de) 2011-03-31
JP5628319B2 (ja) 2014-11-19
US20120223211A1 (en) 2012-09-06

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